Time domain channel characteristics (TDCP) reporting method, device and storage medium

Abstract

An embodiment of the present application discloses a TDCP reporting method and apparatus applicable to a communication system, the method including: determining a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​for different time intervals based on a TRS burst configured by a network device; and reporting the time-domain correlation amplitude values ​​of at least some of the time intervals in the time-domain correlation amplitude value set to the network device. In this technical solution, a terminal device determines the time-domain correlation amplitude values ​​for different time intervals based on a configured TRS resource, and can report the time-domain correlation amplitude values ​​of some of the time intervals to the network device to reduce uplink feedback overhead. The network device can determine the current TDCP of the terminal based on the received time-domain correlation amplitude values ​​of some of the time intervals.

Description

[Technical Field]

[0001] The present application relates to the field of communications technology, and more particularly to a method and apparatus for reporting time domain channel characteristics (TDCP). [Background technology]

[0002] For terminal devices, also called user equipment (UE), moving at medium and high speeds, the UE can perform channel estimation based on Tracking Reference Signal (TRS) resources, and then determine and report the UE's time domain channel property (TDCP) to the network device based on the estimated channel. Summary of the Invention [Problem to be solved by the invention]

[0003] The embodiments of the present application provide a TDCP reporting method, an apparatus therefor, and a storage medium applicable to the communications field, which realizes that by reporting time-domain correlation amplitude values ​​of different time intervals to a network device, the network device can determine other time-domain channel characteristic parameters. [Means for solving the problem]

[0004] According to a first aspect, an embodiment of the present application provides a reporting method for a TDCP, the method comprising: determining a set of time-domain correlation amplitude values, including time-domain correlation amplitude values ​​for different time intervals, based on the TRS bursts set by the network device; and reporting the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device.

[0005] In this technical solution, the terminal device can determine time-domain correlation amplitude values ​​of different time intervals based on the configured TRS resources, and can report the time-domain correlation amplitude values ​​of some time intervals to the network device to reduce the overhead of uplink feedback. The network device can determine the current TDCP of the terminal device based on the received time-domain correlation amplitude values ​​of some time intervals.

[0006] According to a second aspect, an embodiment of the present application provides another TDCP reporting method, the method comprising: configuring a TRS burst in a terminal device to determine a set of time-domain correlation amplitude values, the set of time-domain correlation amplitude values ​​including time-domain correlation amplitude values ​​for different time intervals; receiving time-domain correlation amplitude values ​​for at least some of the time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device.

[0007] According to a third aspect, an embodiment of the present application provides a communication device, the communication device comprising some or all of the functions of a network device that implements the method according to the first aspect. For example, the function of the communication device may comprise some or all of the functions of the embodiments of the present application, or may comprise a function that independently implements any one of the embodiments of the present application. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions.

[0008] In one implementation, the structure of the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module, the storage module being used in combination with the transceiver module and the processing module to store computer programs and data required for the communication device.

[0009] As examples, the processing module may be a processor, the transceiving module may be a transceiver or a communication interface, and the storage module may be a memory.

[0010] According to a fourth aspect, an embodiment of the present application provides another communication device, which includes some or all of the functions of a terminal device for implementing the example method described in the second aspect. For example, the function of the communication device may include some or all of the functions of the embodiments of the present application, or may include the function of independently implementing any one of the embodiments of the present application. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions.

[0011] In one implementation, the structure of the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module, the storage module being used in combination with the transceiver module and the processing module to store computer programs and data required for the communication device.

[0012] According to a fifth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the processor executing the method according to the first aspect above when calling a computer program in a memory.

[0013] According to a sixth aspect, an embodiment of the present application provides a communication device, the communication device including a processor, the processor executing the method according to the second aspect above when calling a computer program in a memory.

[0014] According to a seventh aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the first aspect.

[0015] According to an eighth aspect, an embodiment of the present application provides a communication device, the communication device including a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the second aspect.

[0016] According to a ninth aspect, an embodiment of the present application provides a communications device, the device comprising a processor and an interface circuit, the interface circuit being used to receive and send code instructions to the processor, the processor being used to execute the code instructions so as to cause the device to perform the method according to the first aspect above.

[0017] According to a tenth aspect, an embodiment of the present application provides a communications device, the device comprising a processor and an interface circuit, the interface circuit being used to receive and send code instructions to the processor, the processor being used to execute the code instructions so as to cause the device to perform the method according to the second aspect above.

[0018] According to an eleventh aspect, an embodiment of the present application provides a reporting system for TDCP, the system comprising a communication device according to the third aspect and a communication device according to the fourth aspect, or the system comprising a communication device according to the fifth aspect and a communication device according to the sixth aspect, or the system comprising a communication device according to the seventh aspect and a communication device according to the eighth aspect, or the system comprising a communication device according to the ninth aspect and a communication device according to the tenth aspect.

[0019] According to a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium having stored thereon instructions for use in the network device, the instructions, when executed, causing the network device to perform the method according to the first aspect.

[0020] According to a thirteenth aspect, an embodiment of the present invention provides a computer-readable storage medium having stored thereon instructions for use in the terminal device, the instructions, when executed, causing the terminal device to perform the method according to the second aspect.

[0021] According to a fourteenth aspect, the present application further provides a computer program product comprising a computer program which, when executed on a computer, causes the computer to carry out the method according to the first aspect above.

[0022] According to a fifteenth aspect, the present application further provides a computer program product comprising a computer program which, when executed on a computer, causes the computer to carry out the method according to the second aspect above.

[0023] According to a sixteenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, used to support the implementation of the functionality according to the first aspect by a network device, for example, determining or processing at least one of data and information according to the method. In one possible design, the chip system further includes a memory, the memory being used to store computer programs and data required by the network device. The chip system may be constituted by a chip or may include chips and other discrete devices.

[0024] According to a seventeenth aspect, the present application provides a chip system, the chip system including at least one processor and an interface, used to support the realization of the function according to the second aspect by a terminal device, for example, determining or processing at least one of data and information according to the method. In one possible design, the chip system further includes a memory, the memory being used to store computer programs and data required by the terminal device. The chip system may be constituted by a chip or may include a chip and other discrete devices.

[0025] According to an eighteenth aspect, the present application provides a computer program which, when executed on a computer, causes the computer to carry out the method according to the first aspect above.

[0026] According to a nineteenth aspect, the present application provides a computer program which, when executed on a computer, causes the computer to carry out the method according to the second aspect above. [Brief explanation of the drawings]

[0027] In order to more clearly describe the technical solutions in the embodiments or background art of the present application, the following describes the drawings that need to be used in the embodiments or background art of the present application. [Figure 1]1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application; [Figure 2] 1 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application; [Figure 2a] 1 is a schematic diagram of the time-domain structure of a TRS burst provided by an embodiment of the present application; [Figure 3] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 4] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 5] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 6] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 6a] FIG. 1 is a report schematic diagram of TDCP provided by the examples of the present application. [Figure 6b] FIG. 1 is a report schematic diagram of another TDCP provided by an embodiment of the present application. [Figure 7] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 8] FIG. 1 is a report schematic diagram of another TDCP provided by an embodiment of the present application. [Figure 9] FIG. 1 is a report schematic diagram of another TDCP provided by an embodiment of the present application. [Figure 10] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 11] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 12] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 13]1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 14] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 15] 1 is a schematic flowchart of another TDCP reporting method provided by an embodiment of the present application; [Figure 16] 1 is a structural schematic diagram of a communication device provided by an embodiment of the present application; [Figure 17] 1 is a structural schematic diagram of a communication device provided by an embodiment of the present application; [Figure 18] 1 is a structural schematic diagram of a chip provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0028] Reference will now be made in detail to illustrative embodiments, examples of which are illustrated in the drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise specified. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

[0029] Terms used in the embodiments of the present disclosure are intended to describe particular embodiments and are not intended to limit the embodiments of the present disclosure. Unless the context clearly dictates otherwise, the singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims include the plural forms. It should be understood that the term "and / or" as used herein refers to and includes any one or all possible combinations of one or more associated listed items.

[0030] Although various pieces of information may be described using terms such as "first" and "second" in the embodiments of the present disclosure, they should not be limited to these terms. These terms are used to distinguish between information of the same type. For example, first information may be referred to as "second information," and similarly, second information may be referred to as "first information" without departing from the scope of the embodiments of the present disclosure. Depending on the context, the term "when" used herein may be understood as "when," "on the occasion of," or "in response to a determination." For simplicity and ease of understanding, the terms used herein when expressing magnitude relationships are "greater" or "smaller," "higher," or "lower." However, as will be understood by those skilled in the art, the term "greater" includes the meaning of "greater than," the term "smaller" includes the meaning of "less than," the term "higher" includes the meaning of "more than," and the term "lower" includes the meaning of "less than."

[0031] To facilitate understanding, we first explain the terminology associated with this application.

[0032] Based on the design of the time-domain structure of the TRS, for FR1, higher layers may configure a CSI-RS resource set for a UE, including four cycles of CSI-RS resources within one TRS period. The CSI-RS resources included in the CSI-RS resource set may be referred to as TRS resources. The four resources are distributed within two consecutive slots, each including two cycles of TRS resources. The time-domain locations of the CSI-RS resources within the two slots are the same, and each TRS resource corresponds to one OFDM symbol. For FR1, if each slot includes 14 OFDM symbols, the time-domain location of the TRS resource within one slot can be selected from l∈{4,8}, l∈{5,9}, or l∈{6,10}, where l indicates the index of the OFDM symbol where the TRS resource is located. That is, the symbol location where the TRS resource is located can be determined through the symbol index, where l starts from 0. The TRS period may be set to 10 ms, 20 ms, 40 ms, or 80 ms. The TRS resource may be set to periodic TRS resource or aperiodic TRS resource, and the time domain location of the periodic TRS resource may be the same as or different from the time domain location of the aperiodic TRS resource. Furthermore, the UE may perform channel estimation based on the TRS bursts set by the network device, and acquire the time domain channel property (TDCP) of the UE based on the estimated channel. The TDCP may include the difference between the maximum and minimum Doppler spreads corresponding to different transmission delay paths and the Doppler spreads corresponding to the M strongest peaks in the wideband Doppler spectrum, where M=1, 2, 3, ... is a parameter set by the network side and the time domain correlation amplitude values ​​for different time intervals.

[0033] To better understand the TDCP reporting method disclosed in the embodiment of the present application, a communication system to which the embodiment of the present application is applied will be described below.

[0034] Referring to Figure 1, Figure 1 is a schematic architecture diagram of a communication system provided by an embodiment of the present application. The communication system may include, but is not limited to, one network device and one terminal device. The number and form of devices shown in Figure 1 are merely examples and do not limit the embodiment of the present application. In actual applications, the communication system may include two or more network devices and two or more terminal devices. For example, the communication system shown in Figure 1 includes one network device 101 and one terminal device 102.

[0035] It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as the 3rd Generation (3G) Universal Mobile Telecommunications System (UMTS), the Long Term Evolution (LTE) system, the 5th Generation (5G) mobile communication system, the 5G New Radio (NR) system, the 6th Generation (6G) mobile communication system, or other future new mobile communication systems.

[0036] The network device 101 in the embodiments of the present application is a network-side entity for transmitting and receiving signals. For example, the network device 101 may be an evolved base station (eNB), a transmission reception point (TRP), a next-generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technology and device form adopted by the network device. The network device provided by the embodiments of the present application may be composed of a central unit (CU) and distributed units (DUs), and the CU may be referred to as a control unit. Using the CU-DU structure, the network device can be divided. For example, the protocol layers of a base station may be divided, and some protocol layer functions may be centrally controlled by the CU, and the remaining or all protocol layer functions may be distributed to the DUs, and the DUs may be centrally controlled by the CU.

[0037] The terminal device 102 in the embodiment of the present application is a user-side entity for transmitting and receiving signals, such as a mobile phone. The terminal device may also be called a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device may also be a car with communication capabilities, a smart car, a mobile phone, a wearable device, a pad, a personal computer with wireless transmission and reception capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc. The embodiments of the present application do not limit the specific technology adopted by the terminal device and the specific device form.

[0038] It should be noted that the communication systems described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and are not intended to limit the technical solutions provided by the embodiments of the present application. As will be appreciated by those skilled in the art, with the evolution of system architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application can also be applied to similar technical issues.

[0039] It should be noted that the TDCP reporting method provided by any one of the embodiments of the present application may be implemented alone, or may be implemented in combination with possible implementation methods in other embodiments, or may be implemented together with any one of the technical solutions in the related art.

[0040] The TDCP reporting method and device provided by the present application will be described in detail below in conjunction with the drawings.

[0041] Referring to Figure 2, Figure 2 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 2, the method may include, but is not limited to, the following steps S201 to S202:

[0042] In S201, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0043] In some implementations, the network device can set TRS bursts to the terminal device, and the number of set TRS bursts may be agreed upon by a protocol or set by the network, for example, M TRS bursts may be set, where M is an integer greater than or equal to 2. In some implementations, the M TRS bursts include periodic TRS bursts (P-TRS bursts) and / or aperiodic TRS bursts (AP-TRS bursts), and there is a time interval of at least one time unit between adjacent TRS bursts.

[0044] Note that each TRS burst may include a Channel-State-Information Reference Signal (CSI-RS) resource, and the CSI-RS resource included in the TRS burst may be referred to as a TRS resource in this application, and this description also applies to the following embodiments. The number of TRS resources included in the TRS burst may be configured by the network device or agreed upon by a protocol.

[0045] In some implementations, the time unit may be a slot, a symbol, a subframe, etc., and in the following examples of the present application, the TRS burst setting process will be described using the time unit as a slot as an example.

[0046] In some implementations, the M TRS bursts include periodic TRS bursts and / or aperiodic TRS bursts. Alternatively, the M TRS bursts may include only M periodic TRS bursts. Alternatively, the M TRS bursts may include only M aperiodic TRS bursts. Alternatively, the M TRS bursts may include N periodic TRS bursts and MN aperiodic TRS bursts, where N is an integer greater than or equal to 1 and N≦M.

[0047] The time interval between adjacent TRS bursts is the interval between the first slot corresponding to the TRS resource one or two before that among the TRS resources included in the corresponding TRS resource set in the previous TRS burst and the first slot corresponding to the TRS resource one or two before that among the TRS resources included in the corresponding TRS resource set in the next TRS burst.

[0048] Each of the periodic TRS burst and the aperiodic TRS burst includes two slots, and two TRS resources are transmitted in the TRS burst, with the interval between the two TRS resources being a set number of OFDM symbols.

[0049] In some implementations, the network device may uniformly set the M TRS bursts for the terminal device, i.e., set the time intervals between the M TRS bursts to be the same, as shown in FIG. 2a. Exemplarily, the time interval between the i-th TRS burst and the (i+1)-th TRS burst may be set to d slots, where d is an integer greater than or equal to 1 and i is an integer greater than or equal to 0.

[0050] In some implementations, the M TRS bursts may be TRS bursts within one TRS measurement window. The TRS measurement window includes a start point and a measurement length of the measurement window, which may be preset or set by the network. For example, the first slot in one period may be predefined as the start point of the window.

[0051] Alternatively, the time interval between adjacent TRS bursts may be set by the network or agreed upon by a protocol.

[0052] In some implementations, the terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the set TRS burst. The time-domain correlation amplitude values ​​refer to amplitudes obtained by cross-correlation calculation of channels corresponding to two different times. The time-domain correlation amplitude values ​​can be used to measure channel correlation corresponding to different times.

[0053] In S202, the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​are reported to the network device.

[0054] In an embodiment of the present application, a terminal device can receive a TRS burst set by a network device, and further perform channel estimation based on the set TRS burst, determine a TDCP based on the estimated channel, and report the TDCP to the network device. In some implementations, to reduce signaling overhead, the terminal device may report channel correlation amplitude values ​​of different time intervals in the TDCP to the network device. In some implementations, the terminal device can determine a set of time-domain correlation amplitude values ​​based on the set TRS burst, where the set of time-domain correlation amplitude values ​​includes time-domain correlation amplitude values ​​of different time intervals. The terminal device can report the time-domain correlation amplitude values ​​of at least some of the time intervals in the time-domain correlation amplitude value set to the network device.

[0055] Optionally, the terminal device can report to the network device the time-domain correlation amplitude values ​​of all the time intervals in the time-domain correlation amplitude value set. Optionally, the terminal device can report to the network device the time-domain correlation amplitude values ​​of some of the time intervals in the time-domain correlation amplitude value set.

[0056] In some implementations, the terminal device may determine some time intervals based on a network instruction or protocol agreement and report the time-domain correlation amplitude values ​​of the some time intervals to the network device. For example, the terminal device may report the time-domain correlation amplitude values ​​of N time intervals to the network device based on an instruction or protocol agreement, for example, sequentially reporting the time-domain correlation amplitude values ​​of the first N or last N time intervals. The terminal device may also determine, based on an instruction or protocol agreement, that some time intervals are one or more designated time intervals and report the time-domain correlation amplitude values ​​of the designated time intervals to the network device. For example, the designated time interval may be four symbols, or the terminal device may report the time interval corresponding to an even index or an odd index to the network device.

[0057] That is, the number of time-domain correlation amplitude values ​​for some time intervals reported by the terminal device may be determined by the terminal device and / or reported to the network device, or may be set or indicated by the network device, or may be pre-defined by agreement between the terminal device and the network device.

[0058] After receiving the reported time-domain correlation amplitude values ​​for at least some of the time intervals, the network device can calculate non-reported time-domain correlation amplitude values ​​using an interpolation algorithm based on the reported time-domain correlation amplitude values, which may include time-domain correlation amplitude values ​​not transmitted in a particular TRS or not included in a TDCP that is not based on a TRS report.

[0059] Optionally, after receiving the reported time-domain correlation amplitude values ​​for at least some of the time intervals, the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values, such as the difference between the maximum and minimum Doppler spreads corresponding to different transmission delay paths, the Doppler spreads corresponding to the M strongest peaks in the wideband Doppler spectrum, etc.

[0060] Illustratively, the network device may calculate the Doppler spread based on the following equation (1):

number

[0061] Furthermore, the network device determines which codebook, Type 1 or Type II, to use for precoding of data transmission based on the TDCP of the UE, or sets an SRS transmission periodicity value based on SRS channel reciprocity based on the TDCP of the UE, or performs CSI prediction in the TDD system based on the TDCP of the UE.

[0062] In an embodiment of the present application, the terminal device can determine time-domain correlation amplitude values ​​of different time intervals based on the configured TRS resources, and in order to reduce the overhead of uplink feedback, the terminal device can report the time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine the current TDCP of the terminal device based on the received time-domain correlation amplitude values ​​of some time intervals.

[0063] Referring to Figure 3, Figure 3 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 3, the method may include, but is not limited to, the following steps S301 to S305.

[0064] In S301, TRS bursts set by a network device are received, and the symbol positions of the TRS resources included in each TRS burst are determined.

[0065] After receiving the TRS burst set by the network device, the slot in which each TRS burst is located can be determined, and further, based on a protocol agreement or network setting, the symbol position in which the TRS resource included in the TRS burst is located can be determined.

[0066] In S302, a time interval set corresponding to each symbol position is determined, and the time interval set includes a plurality of different time intervals.

[0067] In some implementations, all symbol positions of the TRS resource included in the TRS burst may be traversed, and for a currently traversed symbol position, time intervals between the remaining symbol positions and the currently traversed symbol position are determined based on the currently traversed symbol position and the remaining symbol positions, thereby obtaining a set of time intervals corresponding to the currently traversed symbol position.

[0068] For example, there are N symbol positions, and the i-th symbol position is the currently traversed symbol position, and the time interval between each remaining symbol position among the N symbol positions and the i-th symbol position is calculated to obtain a time interval set for the i-th symbol position, where each symbol position has one time interval set.

[0069] In S303, channel estimation is performed based on the TRS resource at each symbol position to obtain estimated channel information corresponding to each symbol position.

[0070] In the embodiment of the present application, the terminal device can perform channel estimation based on the TRS resource at each symbol position to obtain estimated channel information at the symbol position.

[0071] At S304, a set of time-domain correlation amplitude values ​​is determined based on the estimated channel information for each symbol position and the set of time intervals.

[0072] In some implementations, the terminal device may obtain time-domain correlation amplitude values ​​for different time intervals corresponding to each symbol position. Note that different symbol positions may correspond to the same time interval. In embodiments of the present application, for each symbol position, candidate time-domain correlation amplitude values ​​for each time interval at the symbol position may be determined based on channel estimation information corresponding to the symbol position and each time interval in the time interval set. Note that each symbol position may correspond to one time interval set, and the time interval set may include one or more different time intervals. Each time interval corresponds to one time-domain correlation amplitude value.

[0073] Optionally, in some implementations, after obtaining estimated channel information for each symbol position and a corresponding set of time intervals, the terminal device can determine time-domain correlation amplitude values ​​for different time intervals at each symbol position based on the estimated channel information and the following equation (2):

number

[0074] Furthermore, the candidate time-domain correlation amplitude values ​​for the same time interval are processed to obtain a time-domain correlation amplitude value for the same time interval. For example, the time-domain correlation amplitude value for the same time interval can be obtained by averaging all the candidate time-domain correlation amplitude values ​​for the same time interval. For example, the largest candidate time-domain correlation amplitude value, the smallest candidate time-domain correlation amplitude value, or the candidate time-domain correlation amplitude value with the highest frequency of occurrence can be selected from all the candidate time-domain correlation amplitude values ​​for the same time interval.

[0075] In S305, the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​are reported to the network device.

[0076] Optionally, the terminal device can report the time domain correlation amplitude values ​​of all time intervals in the time domain correlation amplitude value set to the network device. Optionally, the terminal device can report the time domain correlation amplitude values ​​of some time intervals in the time domain correlation amplitude value set to the network device. The number of time domain correlation amplitude values ​​of some time intervals reported by the terminal device can be determined by the terminal device and / or reported to the network device, or can be set by the network device, or can be predefined by negotiation between the terminal device and the network device. For example, the terminal device can report the time domain correlation amplitude values ​​of all time intervals in the time domain correlation amplitude value set to the network device. N-1 " to the network device, where N is the number of time intervals in the subset.

[0077] In the embodiments of the present application, the implementation of step S305 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed description thereof will be omitted.

[0078] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources, and can report the time-domain correlation amplitude values ​​for some time intervals to a network device to reduce the overhead of uplink feedback. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead.

[0079] Referring to Figure 4, Figure 4 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 4, the method includes, but is not limited to, the following steps S401 to S403.

[0080] In S401, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0081] In the embodiments of the present application, the implementation of step S401 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so detailed explanations will be omitted.

[0082] In S402, the occurrence frequencies of different time intervals are counted, the occurrence frequencies are sorted, and based on the sorting result, a first time interval whose occurrence frequency is higher than a set frequency or a first time interval with a high ranking is selected as a part of the time intervals to be reported.

[0083] In an embodiment of the present application, a time interval set for each symbol position can be obtained, and each time interval set includes different time intervals corresponding to the symbol position. It should be noted that different symbol positions may correspond to the same time interval. Optionally, the terminal device can calculate the frequency of occurrence of time intervals in the time interval sets of all symbol positions to obtain the frequency of occurrence of each time interval, and determine some time intervals to be reported based on the frequency of occurrence.

[0084] In some implementations, the frequency of occurrence can be sorted in descending order and the time interval with the highest sorted ranking can be selected; in the present embodiment, the selected time interval with the highest sorted ranking is referred to as the first time interval, and the terminal device can make the first time interval one of the time intervals to be reported.

[0085] In another implementation, a set frequency may be preset or agreed upon by a protocol, and the occurrence frequency of the time interval may be compared with the set frequency to select a time interval whose occurrence frequency is higher than the set frequency. In the embodiment of the present application, the time interval whose occurrence frequency is higher than the set frequency is called the first time interval, and the terminal device may take the first time interval as part of the time intervals to be reported.

[0086] Alternatively, the number of first time intervals may be set by the network or agreed upon by a protocol, or may be determined by the terminal device and then reported to the network device. For example, the terminal device may use a "log2 N-1 " to the network device, where N is the number of first time intervals.

[0087] At S403, the time domain correlation amplitude value of the first time interval is reported to the network device.

[0088] In some implementations, the terminal device may uniformly quantize the time-domain correlation amplitude value of the first time interval using X bits to obtain quantized information of the time-domain correlation amplitude value of the first time interval.

[0089] In some other implementations, the terminal device may non-uniformly quantize the time-domain correlation amplitude values ​​of the first time interval using X bits to obtain quantization information for the time-domain correlation amplitude values ​​of the first time interval, for example, exponentially quantizing the reported time-domain correlation amplitude values ​​of the first time interval.

[0090] In some other implementations, the terminal device may quantize the time-domain correlation amplitude value of the first time interval in stages to obtain quantization information of the time-domain correlation amplitude value of the first time interval. For example, the time-domain correlation amplitude value of the first time interval may be quantized in two stages, where the first stage is quantized using X bits and the second stage is quantized using Y bits.

[0091] Further, the terminal device may report quantized information of the time-domain correlation amplitude value of the first time interval to the network device.

[0092] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources. To reduce uplink feedback overhead, the terminal device can report the time-domain correlation amplitude values ​​for some time intervals to a network device. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains a certain accuracy of the TDCP without increasing reporting overhead.

[0093] Referring to Figure 5, Figure 5 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 5, the method may include, but is not limited to, the following steps S501 to S503:

[0094] In S501, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0095] In the embodiments of the present application, the implementation of step S501 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed explanations will be omitted.

[0096] In S502, all the time intervals are sorted in ascending order, and the second time interval with the highest ranking including the smallest time interval is determined as a part of the time intervals to be reported.

[0097] In an embodiment of the present application, a set of time intervals for each symbol position can be obtained, and each time interval set includes different time intervals corresponding to the symbol position. All time intervals can be obtained based on the set of time intervals for each symbol position. Furthermore, the terminal device can sort all time intervals in ascending order. In an embodiment of the present application, one or more time intervals with the highest ranking, including the smallest time interval, that the terminal device can report are referred to as second time intervals. The terminal device can select the second time interval as part of the time intervals to be reported.

[0098] Alternatively, the number of second time intervals may be set by the network or agreed upon by a protocol, or may be determined by the terminal device and then reported to the network device. For example, the terminal device may use a "log2 N-1 " to the network device, where N is the number of second time intervals.

[0099] At S503, the time domain correlation amplitude value of the second time interval is reported to the network device.

[0100] In some implementations, the terminal device may uniformly or non-uniformly quantize the time-domain correlation amplitude values ​​of the second time interval using X bits to obtain quantized information of the time-domain correlation amplitude values ​​of the second time interval.

[0101] In some other implementations, the terminal device may quantize the time-domain correlation amplitude values ​​of the second time interval in stages to obtain quantized information of the time-domain correlation amplitude values ​​of the second time interval.

[0102] Furthermore, the terminal device may report quantized information of the time-domain correlation amplitude value of the second time interval to the network device.

[0103] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources. To reduce uplink feedback overhead, the terminal device can report the time-domain correlation amplitude values ​​for some time intervals to a network device. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains a certain accuracy of the TDCP without increasing reporting overhead.

[0104] Referring to Figure 6, Figure 6 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 6, the method may include, but is not limited to, the following steps S601 to S603.

[0105] In S601, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0106] In the embodiments of the present application, the implementation of step S601 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed explanations will be omitted.

[0107] In S602, a part of the TRS bursts set by the network device is determined as a first TRS burst.

[0108] Alternatively, the network device may distribute the M TRS bursts uniformly for the terminal device, i.e., the time intervals between adjacent TRS bursts are the same, and in the embodiments of the present application, the time intervals between TRS bursts are referred to as burst intervals.

[0109] In some implementations, the terminal device may uniformly determine the first TRS burst from the M TRS bursts set by the network device. Optionally, the terminal device may uniformly determine the N first TRS bursts from the M TRS bursts according to the same burst interval.

[0110] As shown in Figure 6a, the network device can uniformly set seven TRS bursts for the terminal device within the TRS measurement window, and determine three of the seven TRS bursts as the first TRS bursts to be reported. The first TRS bursts to be reported include the first TRS burst, the third TRS burst, and the fifth TRS burst, and the burst interval between the i-th first TRS burst and the i+1-th first TRS burst to be reported is d r Here, the burst interval between adjacent first TRS bursts is an integer multiple of the burst interval between adjacent TRS bursts, and as shown in FIG. 6a, the burst interval between adjacent first TRS bursts may be twice the burst interval between adjacent TRS bursts.

[0111] In some other implementations, the terminal device may set the first TRS burst non-uniformly from the M TRS bursts set by the network device. Optionally, the terminal device may determine the N first TRS bursts non-uniformly from the M TRS bursts according to different burst intervals. For example, the burst intervals between the i-th first TRS burst and the i+1-th reported first TRS burst are both d1, and the burst intervals between the i+1-th first TRS burst and the i+2-th reported first TRS burst are both d2.

[0112] In some other implementations, the terminal device can group the TRS bursts set by the network device and determine the first TRS burst in the group from the TRS bursts in the same group, and the burst intervals between adjacent first TRS bursts in at least two of the different groups are different. That is, the terminal device can group M TRS bursts and select one or more TRS bursts in different groups as the first TRS bursts, and the burst intervals of the first TRS bursts in each group are different. For example, first to N1 TRS bursts are grouped into a first group, and the first TRS burst and the second TRS burst are selected as the first TRS bursts in the first group, where the burst interval of the first TRS burst in the first group is d. r1 and the N1+1th TRS burst and the N1+2th TRS burst in the second group are selected as the first TRS burst in the second group, where the burst interval of the first TRS burst in the first group is d r2 is.

[0113] As shown in Figure 6b, the network device uniformly sets seven TRS bursts for the terminal device within the TRS measurement window, and three of the seven TRS bursts can be determined as the first TRS bursts to be reported. The first TRS bursts to be reported include the first TRS burst, the second TRS burst, the third TRS burst, and the fifth TRS burst, and the burst interval between the first TRS burst (first TRS burst) and the second first TRS burst (second TRS burst) in the first group is d r1 The burst interval between the first TRS burst (the third TRS burst) and the second TRS burst (the fifth TRS burst) in the second group is d r2 As shown in FIG. 6a, the burst intervals between adjacent first TRS bursts in the two groups are different, which enables network devices to report time-domain correlation amplitude values ​​of different time intervals non-uniformly.

[0114] In S603, the time domain correlation amplitude values ​​of different time intervals corresponding to the first TRS burst are reported to the network device.

[0115] In some implementations, after determining the first TRS burst, the terminal device can report to the network device time-domain correlation amplitude values ​​of different time intervals corresponding to the first TRS burst. Note that the first TRS burst may include one or more TRS resources, and different time intervals may correspond to symbol positions of each TRS resource. The terminal device can obtain and report to the network device different time intervals corresponding to symbol positions of the TRS resources included in each first TRS burst and time-domain correlation amplitude values ​​of each time interval.

[0116] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources, and can report the time-domain correlation amplitude values ​​for some time intervals to a network device to reduce the overhead of uplink feedback. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead.

[0117] Referring to Figure 7, Figure 7 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 7, the method may include, but is not limited to, the following steps S701 to S704.

[0118] In S701, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0119] In the embodiments of the present application, the implementation of step S701 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed description thereof will be omitted.

[0120] In S702, at least some of the time intervals are determined as time intervals to be reported from all the time intervals.

[0121] In the embodiments of the present application, the implementation of step S702 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed description thereof will be omitted.

[0122] In S703, the time domain correlation amplitude value of the reported time interval is quantized to obtain quantized information of the time domain correlation amplitude value.

[0123] In some implementations, the terminal device may uniformly quantize the time-domain correlation amplitude values ​​of the reported time intervals using X bits to obtain quantized information of the time-domain correlation amplitude values.

[0124] In some other implementations, the terminal device may non-uniformly quantize the time-domain correlation amplitude values ​​of the reported time intervals using X bits to obtain quantization information for the time-domain correlation amplitude values. For example, the terminal device may exponentially quantize the time-domain correlation amplitude values ​​of the reported time intervals.

[0125] In some other implementations, the terminal device may quantize the time-domain correlation amplitude value of the reported time interval in stages to obtain quantization information of the time-domain correlation amplitude value. For example, the time-domain correlation amplitude value of the first time interval may be quantized in two stages, where the first stage is quantized using X bits and the second stage is quantized using Y bits.

[0126] At S704, the quantized information of the time domain correlation amplitude value is reported to the network device.

[0127] Further, the terminal device may report quantized information of the time-domain correlation amplitude value of the first time interval to the network device.

[0128] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources. To reduce uplink feedback overhead, the terminal device can report the time-domain correlation amplitude values ​​for some time intervals to a network device. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains a certain accuracy of the TDCP without increasing reporting overhead.

[0129] Referring to Figure 8, Figure 8 is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a terminal device. As shown in Figure 8, the method may include, but is not limited to, the following steps S801 to S805.

[0130] In S801, a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals is determined based on a TRS burst set by a network device.

[0131] In the embodiments of the present application, the implementation of step S801 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so detailed explanations will be omitted.

[0132] In S802, at least some of the time intervals are determined as time intervals to be reported from all the time intervals.

[0133] In the embodiments of the present application, the implementation of step S802 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereon, so detailed description thereof will be omitted.

[0134] In S803, a target interval in which the time-domain correlation amplitude value of each reported time interval is located is determined, and the number of bits corresponding to the target interval is determined.

[0135] In S804, for each reported time-domain correlation amplitude value, the time-domain correlation amplitude value is quantized based on the number of bits corresponding to the target interval in which the time-domain correlation amplitude value is located to obtain quantization information of the time-domain correlation amplitude value.

[0136] In some implementations, the terminal device may stepwise quantize the time-domain correlation amplitude value of the reported time interval to obtain quantization information of the time-domain correlation amplitude value. Optionally, different intervals may be pre-divided based on statistical results of the time-domain correlation amplitude value. Furthermore, corresponding bit numbers for different intervals are pre-defined or pre-set.

[0137] The terminal device can determine a target interval in which the time-domain correlation amplitude value of each reported time interval is located by comparing the time-domain correlation amplitude value of each reported time interval with the pre-divided intervals, and further determine the number of bits to be used when quantizing the time-domain correlation amplitude value of the reported time interval based on the target interval.

[0138] Optionally, the time-domain correlation amplitude values ​​for the reported time intervals may be quantized in two stages, where the first stage is quantized using X bits and the second stage is quantized using Y bits.

[0139] Illustratively, the terminal device may be configured to receive the time intervals τ i The time-domain correlation amplitude value corresponding to the time-domain correlation amplitude can be determined. The range of possible values ​​for the time-domain correlation amplitude is 0 to 1. Statistical analysis results show that the distribution of possible values ​​between 0 and 0.5 is different from that between 0 and 0.5 to 1, and the proportion of time-domain correlation amplitude values ​​in the interval [0,0.5] is higher than that in the interval [0.5,1]. The first stage is set to quantize using X=2 bits, and the second stage is set to quantize using Y=3 bits. That is, time-domain correlation amplitude values ​​in the interval [0,0.5] are quantized using Y=3 bits in the second stage, and time-domain correlation amplitude values ​​in the interval [0.5,1] are quantized using Y=2 bits in the second stage.

[0140] In S805, the quantized information of the time domain correlation amplitude value is reported to the network device.

[0141] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on configured TRS resources. To reduce uplink feedback overhead, the terminal device can report the time-domain correlation amplitude values ​​for some time intervals to a network device. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead. Furthermore, the reported time-domain correlation amplitude values ​​are quantized in two stages to ensure that the network device obtains a TDCP with a certain accuracy and achieve higher quantization accuracy without increasing reporting overhead.

[0142] Based on the above embodiment, as shown in Figure 9, the network device sets the TRS period to T = 20 slots, the TRS measurement window for acquiring TDCP to W = 20 slots, and the time interval between two adjacent TRS bursts to d = 1 slot, where d refers to the first slot between the first slot of one TRS burst and the first slot of the next adjacent TRS burst. For one TRS burst, the network device configures a CSI-RS resource set of TRS resources including four periods for the terminal device (e.g., UE), where the four resources are distributed within two consecutive slots, each slot includes two periods of TRS resources, the TRS resources in the two slots are located at the same position in the time domain, and each TRS resource corresponds to one OFDM symbol. Each periodic or aperiodic TRS burst includes four TRS resources and is transmitted in two consecutive slots, with two TRS resources in each slot, and the time-domain positions of the two TRS resources are spaced four OFDM symbols apart.

[0143] As shown in Figure 9, the network device configures seven TRS bursts for the UE within one TRS measurement window, and the UE can perform channel estimation based on the TRS resources corresponding to the seven TRS bursts and further determine the TDCP of the UE. In an embodiment of the present application, the UE can report time-domain correlation amplitude values ​​of different time intervals to the network device, and within one TRS measurement window, the UE can calculate different time intervals based on the seven TRS bursts. Different time intervals τ i The possible values ​​of τ are determined based on the symbol positions where the periodic and aperiodic TRS resources set by the network side are located. Specifically, τ i Possible values ​​of are 4 OFDM symbols, 1 slot, 18 OFDM symbols, 2 slots, 3 slots, ..., 6 slots, etc. Based on the TRS estimation channel information received at different symbol positions, the UE estimates the time interval τ i Calculate the time domain correlation amplitude value corresponding to

[0144] UE is all A(t,τ i ) can be uniformly quantized to 3 bits and then reported to the network device. The network device can then calculate the A(t,τ i ), the network device can estimate the moving speed or Doppler spectrum of the UE, thereby obtaining the current TDCP of the UE. Furthermore, the network device can determine which codebook, Type I or Type II, to use for precoding of data transmission based on the TDCP of the UE, or set a Sounding Reference Signal (SRS) transmission periodicity value based on the channel reciprocity of the SRS based on the TDCP of the UE, or perform CSI prediction in the TDD system based on the TDCP of the UE.

[0145] Alternatively, the terminal device can report N time-domain correlation amplitude values ​​to the network device. The maximum number of time-domain correlation amplitude values ​​that the terminal device can report is set or agreed upon as M=7. The terminal device first estimates the estimated channel information of the corresponding position based on each TRS burst, and then calculates the time-domain correlation amplitude values ​​A(t,τ) for different time intervals according to formula (2). i The terminal device calculates the calculated A(t,τ i ) can acquire its own TDCP parameters such as its channel change state or Doppler spectrum. The terminal device determines to report N=4 time-domain correlation amplitude values ​​based on the setting or instruction of the network device or protocol agreement. For example, the four reported time-domain correlation amplitude values ​​are determined based on all τ i , i.e., τ i The amplitude values ​​correspond to 4 OFDM symbols, 1 slot, 18 OFDM symbols, and 2 slots.

[0146] Based on the above embodiment, as shown in FIG. 10, the network device sets the TRS period T=10 slots, the TRS measurement window W=20 slots, and the interval between two adjacent TRS bursts for reporting TDCP is d r= 5 slots. TRS bursts within the same TRS period are uniformly set. The terminal device estimates a channel based on the set TRS resources and calculates a time-domain correlation amplitude value corresponding to each TRS burst, and the terminal device quantizes different time-domain correlation amplitude values ​​corresponding to TRS bursts with a time interval of 5 slots and then reports them to the network device. The network device determines which codebook, Type I or Type II, to use for precoding of data transmission based on the TDCP of the UE, or sets an SRS transmission period value based on SRS channel reciprocity based on the TDCP of the UE, or performs CSI prediction in the TDD system based on the TDCP of the UE.

[0147] 11, which is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a network device. As shown in FIG. 11, the method may include, but is not limited to, the following steps S1101 to S1102:

[0148] In S1101, a TRS burst is configured in a terminal device to determine a time-domain correlation amplitude value set, where the time-domain correlation amplitude value set includes time-domain correlation amplitude values ​​of different time intervals.

[0149] In some implementations, the network device can set a TRS burst to the terminal device, and the number of set TRS bursts can be agreed upon by a protocol or set by the network, for example, M TRS bursts can be set, where M is an integer greater than or equal to 2. In some implementations, the M TRS bursts include periodic TRS bursts and / or aperiodic TRS bursts, and there is a time interval of at least one time unit between adjacent TRS bursts.

[0150] In some implementations, the network device can set the TRS burst for the terminal device to be uniform or non-uniform. For the process and manner in which the network device sets the TRS burst for the terminal device, please refer to the description of step S201 in the relevant content in the above embodiment, and detailed description will be omitted here.

[0151] In an embodiment of the present application, a terminal device may receive a TRS burst set by a network device, perform channel estimation based on the set TRS burst, determine a TDCP based on the estimated channel, and report the TDCP to the network device. In some implementations, to reduce signaling overhead, the terminal device may report channel correlation amplitude values ​​of different time intervals in the TDCP to the network device. In some implementations, the terminal device may determine a set of time-domain correlation amplitude values ​​based on the set TRS burst, where the set of time-domain correlation amplitude values ​​includes time-domain correlation amplitude values ​​of different time intervals. The terminal device may report the time-domain correlation amplitude values ​​of at least some of the time intervals in the set of time-domain correlation amplitude values ​​to the network device.

[0152] At S1102, receive time-domain correlation amplitude values ​​for at least some time intervals in a time-domain correlation amplitude value set reported by a terminal device.

[0153] Optionally, the network device may receive time-domain correlation amplitude values ​​for all time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device. Optionally, the network device may receive time-domain correlation amplitude values ​​for some time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device.

[0154] In some implementations, the network device may receive a time-domain correlation amplitude value for a specified time interval in a set of time-domain correlation amplitude values ​​reported by the terminal device. For example, the specified time interval may be four symbols, or may be a time interval corresponding to an even index or an odd index.

[0155] In some implementations, some time intervals may be the first time intervals whose occurrence frequency is higher than the set frequency, or may be the first time intervals that are ranked higher after sorting the occurrence frequency.

[0156] In some implementations, all time intervals are sorted in ascending order, and a subset of time intervals is selected after sorting, and the selected subset of time intervals is the second highest ranked time interval that includes the smallest time interval.

[0157] In some implementations, the terminal device may determine the partial time intervals based on a network instruction or protocol agreement and report the time-domain correlation amplitude values ​​of the partial time intervals to the network device, i.e., the number of time-domain correlation amplitude values ​​of the partial time intervals reported by the terminal device may be determined by the terminal device and / or reported to the network device, or may be set or indicated by the network device, or may be predefined by negotiation between the terminal device and the network device.

[0158] After receiving the reported time-domain correlation amplitude values ​​for at least some of the time intervals, the network device can calculate unreported time-domain correlation amplitude values ​​using an interpolation algorithm based on the reported time-domain correlation amplitude values.

[0159] Optionally, after receiving the reported time-domain correlation amplitude values ​​for at least some of the time intervals, the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values, such as the difference between the maximum and minimum Doppler spreads corresponding to different transmission delay paths, the Doppler spreads corresponding to the M strongest peaks in the wideband Doppler spectrum, etc.

[0160] Furthermore, the network device determines which codebook, Type 1 or Type II, to use for precoding of data transmission based on the TDCP of the UE, or sets an SRS transmission periodicity value based on SRS channel reciprocity based on the TDCP of the UE, or performs CSI prediction in the TDD system based on the TDCP of the UE.

[0161] In the embodiments of the present application, the network device can reasonably configure TRS resources for the terminal device, so that the terminal device can accurately determine the TDCP based on the configured TRS resources. After determining the TDCP, the terminal device can report time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​of some time intervals, thereby reducing signaling and resource overhead.

[0162] 12, which is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a network device. As shown in FIG. 12, the method may include, but is not limited to, the following steps S1201 to S1202:

[0163] In S1201, a TRS burst is configured in a terminal device to determine a time-domain correlation amplitude value set, where the time-domain correlation amplitude value set includes time-domain correlation amplitude values ​​of different time intervals.

[0164] In the embodiments of the present application, the implementation of step S1201 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so detailed explanations will be omitted.

[0165] In S1202, a time domain correlation amplitude value of a first time interval reported by a terminal device is received, where the first time interval is determined based on an occurrence frequency from all time intervals.

[0166] In an embodiment of the present application, a time interval set for each symbol position can be obtained, and each time interval set includes different time intervals corresponding to the symbol position. Different symbol positions may correspond to the same time interval. Optionally, statistics are collected on the occurrence frequency of time intervals in the time interval sets for all symbol positions to obtain the occurrence frequency of each time interval. The terminal device determines the part of time intervals to be reported based on the occurrence frequency.

[0167] In some implementations, the occurrence frequency can be sorted in descending order to select the time interval with the highest ranking, and in the embodiments of the present application, the selected time interval with the highest ranking is referred to as the first time interval, and the network device can receive the time-domain correlation amplitude value of the first time interval reported by the terminal device.

[0168] In another implementation, one set frequency may be preset or agreed upon by a protocol, and the terminal device may compare the occurrence frequency of the time interval with the set frequency and select a time interval whose occurrence frequency is higher than the set frequency; in the embodiment of the present application, the time interval whose occurrence frequency is higher than the set frequency is referred to as the first time interval, and the network device may receive the time-domain correlation amplitude value of the first time interval reported by the terminal device.

[0169] Alternatively, the number of the first time intervals may be set by the network or agreed upon by a protocol, or the terminal device may determine and then report to the network device, that is, the network device may receive the number of the first time intervals reported by the terminal device.

[0170] In some implementations, the terminal device may non-uniformly quantize the time-domain correlation amplitude value of the first time interval using X bits to obtain quantized information of the time-domain correlation amplitude value of the first time interval.

[0171] In some other implementations, the terminal device may quantize the time-domain correlation amplitude value of the first time interval in stages to obtain quantization information of the time-domain correlation amplitude value of the first time interval. For example, the time-domain correlation amplitude value of the first time interval may be quantized in two stages, where the first stage is quantized using X bits and the second stage is quantized using Y bits.

[0172] The network device can receive quantization information for the time-domain correlation amplitude value for the first time interval. Further, the network device can determine a reported time-domain correlation amplitude value based on the quantization information.

[0173] In an embodiment of the present application, a network device can reasonably configure TRS resources for a terminal device, so that the terminal device can accurately determine TDCP based on the configured TRS resources. After determining TDCP, the terminal device can report time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​of some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains TDCP with a certain accuracy without increasing reporting overhead.

[0174] 13, which is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a network device. As shown in FIG. 13, the method may include, but is not limited to, the following steps S1301 to S1302.

[0175] In S1301, a TRS burst is configured in a terminal device to determine a time-domain correlation amplitude value set, where the time-domain correlation amplitude value set includes time-domain correlation amplitude values ​​of different time intervals.

[0176] In the embodiments of the present application, the implementation of step S1301 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so detailed explanations will be omitted.

[0177] At S1302, a time-domain correlation amplitude value of a second time interval reported by the terminal device is received, and the second time interval is a high-ranked time interval including the smallest time interval selected after sorting all time intervals in ascending order.

[0178] In an embodiment of the present application, a set of time intervals for each symbol position can be obtained, with each set of time intervals including different time intervals corresponding to the symbol position. All time intervals can be obtained based on the set of time intervals for each symbol position. Furthermore, the terminal device can sort all time intervals in ascending order. In an embodiment of the present application, the terminal device can report one or more time intervals with the highest ranking, including the smallest time interval, which can be referred to as the second time interval. The network device can receive the time-domain correlation amplitude values ​​of the second time intervals reported by the terminal device.

[0179] Alternatively, the number of first time intervals may be set by the network or agreed upon by a protocol, or may be determined by the terminal device and then reported to the network device, that is, the network device may receive the number of first time intervals reported by the terminal device.

[0180] In some implementations, the terminal device may uniformly or non-uniformly quantize the time-domain correlation amplitude values ​​of the second time interval using X bits to obtain quantized information of the time-domain correlation amplitude values ​​of the second time interval.

[0181] In some other implementations, the terminal device may quantize the time-domain correlation amplitude values ​​of the second time interval in stages to obtain quantized information of the time-domain correlation amplitude values ​​of the second time interval.

[0182] The network device can receive quantization information of the time-domain correlation amplitude value for the second time interval. Further, the network device can determine a reported time-domain correlation amplitude value based on the quantization information.

[0183] In an embodiment of the present application, a network device can reasonably configure TRS resources for a terminal device, so that the terminal device can accurately determine TDCP based on the configured TRS resources. After determining TDCP, the terminal device can report time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​of some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains TDCP with a certain accuracy without increasing reporting overhead.

[0184] 14, which is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a network device. As shown in FIG. 14, the method may include, but is not limited to, the following steps S1401 to S1402.

[0185] In S1401, a TRS burst is configured in a terminal device to determine a time-domain correlation amplitude value set, where the time-domain correlation amplitude value set includes time-domain correlation amplitude values ​​of different time intervals.

[0186] In the embodiment of the present application, the implementation of step S1401 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so a detailed description thereof will be omitted.

[0187] At S1402, a time domain correlation amplitude value corresponding to a first TRS burst reported by the terminal device is received, where the first TRS burst is a part of the TRS burst determined by the terminal device from the set TRS bursts.

[0188] Alternatively, the network device can uniformly set the M TRS bursts for the terminal device, i.e., the time interval between adjacent TRS bursts is the same, and in the embodiments of the present application, the time interval between TRS bursts is referred to as the burst interval.

[0189] In some implementations, the terminal device may uniformly determine the first TRS burst from the M TRS bursts set by the network device. Alternatively, the terminal device may uniformly determine the N first TRS bursts from the M TRS bursts according to the same burst interval, as shown in FIG. 6a. A specific implementation may be achieved by any one of the methods of each embodiment of the present application, and detailed description thereof will be omitted as it is not limited thereto.

[0190] In some other implementations, the terminal device may set the first TRS bursts non-uniformly from the M TRS bursts set by the network device. Optionally, the terminal device may determine the N first TRS bursts non-uniformly from the M TRS bursts according to different burst intervals. A specific implementation may be implemented by any one of the methods of each embodiment of the present application, and detailed description thereof will be omitted as it is not limited thereto.

[0191] In some other implementations, the terminal device may group the TRS bursts set by the network device and determine the first TRS burst in the same group from the TRS bursts in the same group, where the burst intervals between adjacent first TRS bursts in at least two groups among different groups are different. That is, the terminal device may group M TRS bursts and select one or more TRS bursts in different groups as the first TRS burst, where the burst intervals of the first TRS bursts in each group are different, as shown in FIG. 6b. A specific implementation may be implemented by any one of the methods of each embodiment of the present application, and is not limited thereto, so detailed description thereof will be omitted.

[0192] In some implementations, after the terminal device determines the first TRS burst, the network device may receive time-domain correlation amplitude values ​​for different time intervals corresponding to the first TRS burst reported by the terminal device.

[0193] In the embodiments of the present application, the network device can reasonably configure TRS resources for the terminal device, so that the terminal device can accurately determine the TDCP based on the configured TRS resources. After determining the TDCP, the terminal device can report time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​of some time intervals, thereby reducing signaling and resource overhead.

[0194] 15, which is a schematic flowchart of a TDCP reporting method provided by an embodiment of the present application. The TDCP reporting method may be performed by a network device. As shown in FIG. 15, the method may include, but is not limited to, the following steps S1501 to S1503.

[0195] In S1501, a TRS burst is configured in a terminal device to determine a time-domain correlation amplitude value set, where the time-domain correlation amplitude value set includes time-domain correlation amplitude values ​​of different time intervals.

[0196] In the embodiment of the present application, the implementation of step S1501 can be realized by any one of the methods of the embodiments of the present application, and there is no limitation thereto, so a detailed description thereof will be omitted.

[0197] In S1502, quantized information of the time domain correlation amplitude values ​​of the part of the time interval transmitted from the terminal device is received.

[0198] In some implementations, the network device may receive quantized information of the time-domain correlation amplitude values ​​transmitted from the terminal device, the quantized information being uniformly quantized using X bits.

[0199] In some other implementations, the network device may receive quantized information of the time-domain correlation amplitude values ​​transmitted from the terminal device, the quantized information being non-uniformly quantized using X bits.

[0200] In some other implementations, the network device may receive quantization information of the time-domain correlation amplitude value, which is quantized in stages, transmitted from the terminal device. For example, the time-domain correlation amplitude value of a certain time interval may be quantized in two stages, with the first stage being quantized using X bits and the second stage being quantized using Y bits. The number of bits used when quantizing the time-domain correlation amplitude value may be determined based on the target interval in which the time-domain correlation amplitude value is located, and the number of quantization bits corresponding to different target intervals may be different. Alternatively, the number of quantization bits corresponding to different target intervals may be the same.

[0201] In S1503, a time domain correlation amplitude value is determined based on the quantization information.

[0202] The network device may determine the time-domain correlation amplitude value reported by the terminal device based on the quantization information, which is the case for step-wise quantization.

[0203] In an embodiment of the present application, a network device can reasonably configure TRS resources for a terminal device, so that the terminal device can accurately determine TDCP based on the configured TRS resources. After determining TDCP, the terminal device can report time-domain correlation amplitude values ​​of some time intervals to the network device, and the network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​of some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains TDCP with a certain accuracy without increasing reporting overhead.

[0204] In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are described from the perspective of a network device and a terminal device, respectively. To realize each function in the methods provided by the above embodiments of the present application, the network device and the terminal device may include a hardware structure and a software module, and each function is realized in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Specific functions in each function may be implemented in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module.

[0205] 16, there is shown a structural schematic diagram of a communication device 1600 provided by an embodiment of the present application. The communication device 1600 shown in FIG. 16 may include a transceiver module 1601 and a processing module 1602. The transceiver module 1601 may include a transmitting module and / or a receiving module, where the transmitting module is used to realize a transmitting function and the receiving module is used to realize a receiving function, and the transceiver module 1601 can realize a transmitting function and / or a receiving function.

[0206] The communication device 1600 may be a network device, a device within a network device, or a device used in combination with a network device, or the communication device 1600 may be a terminal device, a device within a terminal device, or a device used in combination with a terminal device.

[0207] The communication device 1600 is a terminal device, The processing module 1602 is used to determine a time-domain correlation amplitude value set including time-domain correlation amplitude values ​​for different time intervals based on the TRS burst set by the network device; The transceiver module 1601 is used for reporting time domain correlation amplitude values ​​of at least some time intervals in the set of time domain correlation amplitude values ​​to the network device.

[0208] In some implementations, the transceiver module 1601 is further used to receive a TRS burst set by the network device; The processing module 1602 further determines symbol positions of TRS resources included in each TRS burst, determines a set of time intervals corresponding to each of the symbol positions, where the set of time intervals includes a plurality of different time intervals, performs channel estimation based on the TRS resources at the symbol positions, obtains estimated channel information corresponding to the symbol positions, and uses it to determine the set of time-domain correlation amplitude values ​​based on the estimated channel information and the set of time intervals for each symbol position.

[0209] In some implementations, the processing module 1602 is further used to determine a candidate time-domain correlation amplitude value for each time interval at the symbol position based on channel estimation information corresponding to the symbol position and each time interval in the time interval set, and to obtain a time-domain correlation amplitude value for the same time interval based on the candidate time-domain correlation amplitude value for the same time interval.

[0210] In some implementations, the transceiver module 1601 is further used to report the time domain correlation amplitude values ​​of all time intervals in the set of time domain correlation amplitude values ​​to the network device.

[0211] In some implementations, the transceiver module 1601 is further used to report time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device.

[0212] In some implementations, the processing module 1602 is further used to determine the time intervals of the portion based on a network instruction or protocol agreement; The transceiver module 1601 is further used for reporting the time domain correlation amplitude value of the portion of time intervals to the network device.

[0213] In some implementations, the processing module 1602 is further used for calculating the frequency of occurrence of different time intervals, sorting the frequency of occurrence, and selecting, based on the sorting result, a first time interval whose frequency of occurrence is higher than a preset frequency or a first time interval with a high ranking as the part of time intervals; The transceiver module 1601 is further used for reporting the time domain correlation amplitude value of the first time interval to the network device.

[0214] In some implementations, the processing module 1602 is further used to sort all the time intervals in ascending order and determine a second time interval with a higher ranking that includes the smallest time interval as the portion of time intervals; The transceiver module 1601 is further used for reporting the time-domain correlation amplitude value of the second time interval to the network device.

[0215] In some implementations, the transceiver module 1601 is further used to report the number of first time intervals and / or second time intervals to the network device.

[0216] In some implementations, the number of the first time intervals and / or the second time intervals is set by the network or agreed upon by a protocol.

[0217] In some implementations, the processing module 1602 is further used to determine a TRS burst from the TRS bursts configured by the network device as a first TRS burst; The transceiver module 1601 is further used for reporting time domain correlation amplitude values ​​of different time intervals corresponding to the first TRS burst to the network device.

[0218] In some implementations, the processing module 1602 is further used to uniformly determine the first TRS burst according to the same burst interval from TRS bursts set by the network device.

[0219] In some implementations, the processing module 1602 is further used to determine the first TRS burst non-uniformly according to different burst intervals from TRS bursts set by the network device.

[0220] In some implementations, the processing module 1602 is used to group the configured TRS bursts and determine a burst interval corresponding to each group, wherein the burst intervals corresponding to at least two of the different groups are different; The first TRS burst is determined from the TRS bursts in each group based on the burst interval corresponding to the group.

[0221] In some implementations, the transceiver module 1602 is further used to report to the network device time domain correlation amplitude values ​​for specified time intervals in the set of time domain correlation amplitude values, or to report to the network device time domain correlation amplitude values ​​for specified time intervals in a different set of time intervals corresponding to the set of time domain correlation amplitude values, wherein the symbol positions of the TRS resources included in each TRS burst correspond to one set of time intervals.

[0222] In some implementations, the processing module 1602 is further used to quantize the time domain correlation amplitude values ​​of the at least some intervals to obtain quantized information of the time domain correlation amplitude values; The transceiver module 1602 is further used for transmitting quantized information of the time-domain correlation amplitude value to the network device.

[0223] In some implementations, the processing module 1602 is further used to determine a target interval in which the time-domain correlation amplitude value to be reported is located, determine a number of bits corresponding to the target interval, and, for each of the time-domain correlation amplitude values, quantize the time-domain correlation amplitude value based on the number of bits corresponding to the time-domain correlation amplitude value to obtain quantization information of the time-domain correlation amplitude value.

[0224] The communication device 1600 is a network device. The processing module 1602 is used to configure a TRS burst in a terminal device to determine a time-domain correlation amplitude value set, the time-domain correlation amplitude value set including time-domain correlation amplitude values ​​of different time intervals; The transceiver module 1601 is used for receiving time-domain correlation amplitude values ​​of at least some time intervals in the time-domain correlation amplitude value set reported by the terminal device.

[0225] In some implementations, processing module 1602 is used to determine other time-domain channel characteristics of the terminal device based on the reported time-domain correlation amplitude values.

[0226] In some implementations, the transceiver module 1601 is used to receive time-domain correlation amplitude values ​​of all time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device.

[0227] In some implementations, the transceiver module 1601 is used to receive time-domain correlation amplitude values ​​of some time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device.

[0228] In some implementations, the partial time interval is dictated by the network or agreed upon by a protocol.

[0229] In some implementations, the subset of time intervals is a first time interval whose occurrence frequency is higher than a set frequency, or a first time interval that ranks high after sorting the occurrence frequency.

[0230] In some implementations, all time intervals are sorted in ascending order, and the subset of time intervals is the second highest ranked time interval that includes the smallest time interval.

[0231] In some implementations, the transceiver module 1601 is further used to receive the number of first time intervals and / or second time intervals reported by the terminal device.

[0232] In some implementations, the number of first time intervals and / or second time intervals is determined based on a protocol agreement.

[0233] In some implementations, the transceiver module 1601 is further used to receive a time-domain correlation amplitude value corresponding to a first TRS burst reported by the terminal device, the first TRS burst being a portion of a TRS burst determined from the TRS bursts set by the terminal device.

[0234] In some implementations, the first TRS burst is a TRS burst determined uniformly according to the same burst interval from a TRS burst set by the network device.

[0235] In some implementations, the first TRS burst is a TRS burst determined from each group of TRS bursts according to the burst interval corresponding to the group, and the burst intervals corresponding to at least two of the different groups are different.

[0236] In some implementations, the transceiver module 1601 is further used to receive time domain correlation amplitude values ​​for specified time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device, or to receive time domain correlation amplitude values ​​for specified time intervals in a different set of time intervals corresponding to the set of time domain correlation amplitude values ​​reported by the terminal device, and the symbol positions of the TRS resources included in each TRS burst correspond to one set of time intervals.

[0237] In some implementations, the transceiver module 1601 is further used to receive quantization information of the time-domain correlation amplitude value transmitted from the terminal device and determine the time-domain correlation amplitude value based on the quantization information.

[0238] In an embodiment of the present application, a terminal device can determine time-domain correlation amplitude values ​​for different time intervals based on the configured TRS resources. To reduce uplink feedback overhead, the terminal device can report the time-domain correlation amplitude values ​​for some time intervals to a network device. The network device can determine other information in the TDCP based on the reported time-domain correlation amplitude values ​​for some time intervals, thereby reducing signaling and resource overhead. Quantizing the reported time-domain correlation amplitude values ​​can ensure that the network device obtains a certain accuracy of the TDCP without increasing reporting overhead.

[0239] 17, which is a structural schematic diagram of another communication device 1700 provided by an embodiment of the present application. The communication device 1700 may be a network device, a terminal device, a chip, a chip system, a processor, etc. that supports a network device to implement the above-mentioned method, or a chip, a chip system, a processor, etc. that supports a terminal device to implement the above-mentioned method. The device is used to implement the method described in the above-mentioned method embodiment, and please refer to the description in the above-mentioned method embodiment for details.

[0240] The communication device 1700 may include one or more processors 1701. The processor 1701 may be a general-purpose processor or a special-purpose processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

[0241] Optionally, the communication device 1700 may include one or more memories 1702 in which a computer program 1704 is stored, and the processor 1701 executes the computer program 1704 to cause the communication device 1700 to perform the method described in the above method embodiments. Optionally, data may be stored in the memory 1702. The communication device 1700 and the memory 1702 may be provided separately or integrated together.

[0242] Optionally, the communication device 1700 may further include a transceiver 1705 and an antenna 1706. The transceiver 1705 may also be referred to as a transceiver unit, transceiver, or transceiver circuit, and is used to realize a transmitting and receiving function. The transceiver 1705 may include a receiver and a transmitter, and the receiver may also be referred to as a receiving device or receiving circuit, and is used to realize a receiving function, and the transmitter may also be referred to as a transmitting device or transmitting circuit, and is used to realize a transmitting function.

[0243] Optionally, the communication device 1700 may further include one or more interface circuits 1707. The interface circuit 1707 receives and transmits code instructions to the processor 1701. The processor 1701 executes the code instructions to cause the communication device 1700 to perform the methods described in the method embodiments above.

[0244] In one implementation, the processor 1701 may include a transceiver for implementing reception and transmission functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the reception and transmission functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used to read and write code / data, or the transceiver circuit, interface, or interface circuit may be used to transmit or communicate signals.

[0245] In one implementation, the processor 1701 may store a computer program 1703, which executes in the processor 1701, thereby causing the communication device 1700 to perform the methods described in the above method embodiments. The computer program 1703 may be fixed to the processor 1701, in which case the processor 1701 may be implemented in hardware.

[0246] In one implementation, the communications device 1700 may include circuitry capable of implementing the transmit, receive, or communication functions of the method embodiments described above. The processors and transceivers described in this disclosure may be integrated into an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, or the like. The processors and transceivers may be fabricated using a variety of IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (nMOS), p-type metal oxide semiconductor (pMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaS), etc.

[0247] The communication device in the above embodiment may be a network device or a terminal device, but the scope of the communication device in the present description is not limited thereto, and the structure of the communication device may not be limited by Fig. 17. The communication device may be an independent device or part of a larger device. For example, the communication device may be as follows: (1) An independent integrated circuit IC or chip, or a chip system or subsystem; (2) a set having one or more ICs, optionally the IC set may include a memory component for storing data, computer programs; (3) ASIC, e.g., modem, (4) Modules that can be embedded into other devices; (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handhelds, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, etc. (6)Others.

[0248] When the communication device is a chip or a chip system, please refer to the structural schematic diagram of the chip shown in Fig. 18. The chip shown in Fig. 18 includes a processor 1801 and an interface 1802. The number of processors 1801 may be one or more, and the number of interfaces 1802 may be more than one.

[0249] In some implementations, the chip may be used to realize the functions of the terminal device of the embodiments of the present application, and for specific explanations, please refer to the explanation of the relevant content of the above embodiments, and detailed explanations will be omitted here.

[0250] In some implementations, the chip may be used to realize the functions of the network device of the embodiments of the present application, and for specific explanations, please refer to the explanations of the relevant content of the above embodiments, and detailed explanations will be omitted here.

[0251] Optionally, the chip further includes a memory 1803 for storing necessary computer programs and data.

[0252] As will be appreciated by those skilled in the art, the various illustrative logical blocks and steps enumerated in the embodiments of the present disclosure can be realized by electronic hardware, computer software, or a combination of both. Whether such functions are realized by hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can realize the functions using various methods for each specific application, but such realization should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

[0253] An embodiment of the present application further provides a TRS configuration system, the system including a communication device as a network device and a communication device as a terminal device according to the embodiment of Figure 15 described above, or the system including a communication device as a network device and a communication device as a terminal device according to the embodiment of Figure 16 described above.

[0254] The present application further provides a readable storage medium having instructions stored thereon, which, when executed by a computer, implement the functionality of any one of the method embodiments described above.

[0255] The present application further provides a computer program product, which, when executed by a computer, implements the functions of any one of the above method embodiments.

[0256] In the above embodiments, all or a portion thereof can be implemented in software, hardware, firmware, or any combination thereof. When implemented using software, all or a portion thereof can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded and executed on a computer, the computer programs generate, in whole or in part, the flow or functions described in the embodiments of the present disclosure. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer programs may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.) methods. The computer-readable storage medium may be any available medium accessible to a computer, or a data storage device such as a server, data center, or the like, integrating one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0257] As will be appreciated by those skilled in the art, the various numerals, such as first, second, etc., used herein are merely divisions made for ease of explanation and do not limit the scope of the embodiments of the present application, but also represent priorities.

[0258] "At least one" in this application may be explained as "one or more," and "more" may be two, three, four or more, and is not limited by this application. In the embodiments of this application, for one technical feature, the technical features in the category are distinguished by "first," "second," "third," "A," "B," "C," and "D," etc., and there is no priority or size order between the technical features explained by "first," "second," "third," "A," "B," "C," and "D."

[0259] The correspondences shown in each table in this application may be set or defined in advance. The possible values ​​of information in each table are merely examples and may be set to other values ​​and are not limited by this application. When setting the correspondences between information and each parameter, it is not necessary to set all of the correspondences shown in each table. For example, in the tables of this application, the correspondences shown in some rows may not be set. Furthermore, the tables may be appropriately modified or adjusted, such as by dividing or merging. The names of the parameters shown in the themes of each table may also be called other names understandable to the communication device, and the possible values ​​or display methods of the parameters may also be other values ​​or display methods understandable to the communication device. When implemented, each table may use other data structures, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, and hash tables.

[0260] Predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-agreed upon, pre-set, hardened or pre-baked.

[0261] As can be understood by those skilled in the art, the units and algorithm steps of each example described in the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can implement the described functions using different methods for each specific application, and such implementation should not be considered as going beyond the scope of the present disclosure.

[0262] As can be clearly understood by those skilled in the art, for convenience and simplification of explanation, the specific working processes of the systems, devices and units described above are to be referred to the corresponding processes in the aforementioned method embodiments, and detailed descriptions thereof will be omitted here.

[0263] The above description is merely a specific embodiment of the present application, and the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art without departing from the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be governed by the claims.

Claims

1. A time domain channel characteristic (TDCP) reporting method performed by a terminal device, comprising: determining a set of time-domain correlation amplitude values, including time-domain correlation amplitude values ​​for different time intervals, based on a tracking reference signal (TRS) burst set by the network device; reporting time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device. A method for reporting TDCP, characterized by:

2. determining a set of time domain correlation amplitude values ​​based on a TRS burst configured by the network device, receiving TRS bursts configured by a network device and determining symbol positions of TRS resources included in each TRS burst; determining a set of time intervals corresponding to each said symbol position, said set of time intervals including a plurality of different time intervals; performing channel estimation based on the TRS resource at the symbol position to obtain estimated channel information corresponding to the symbol position; determining the set of time-domain correlation amplitude values ​​based on the estimated channel information for each symbol position and the set of time intervals. The TDCP reporting method according to claim 1 .

3. determining the set of time-domain correlation amplitude values ​​based on the channel estimation information for each symbol position and the set of time intervals, determining a candidate time-domain correlation amplitude value for each time interval in the symbol position based on channel estimation information corresponding to the symbol position and each time interval in a set of time intervals; obtaining a time domain correlation amplitude value for the same time interval based on candidate time domain correlation amplitude values ​​for the same time interval; The TDCP reporting method according to claim 2 .

4. The step of reporting the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device includes: reporting the time domain correlation amplitude values ​​of all time intervals in the set of time domain correlation amplitude values ​​to the network device. The TDCP reporting method according to any one of claims 1 to 3.

5. The step of reporting the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device includes: reporting time domain correlation amplitude values ​​of a portion of time intervals in the set of time domain correlation amplitude values ​​to the network device; The TDCP reporting method according to any one of claims 1 to 3.

6. The step of reporting the time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device includes: determining the portion of time intervals based on a network instruction or protocol agreement, and reporting time domain correlation amplitude values ​​of the portion of time intervals to the network device; The TDCP reporting method according to claim 5 .

7. The step of reporting the time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device includes: Counting the occurrence frequencies for different time intervals and sorting the occurrence frequencies; selecting, based on the sorting result, a first time interval having a higher appearance frequency than a set frequency or a first time interval having a high ranking as the part of time intervals, and reporting a time domain correlation amplitude value of the first time interval to the network device. The TDCP reporting method according to claim 5 .

8. The step of reporting the time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device includes: sorting all the time intervals in ascending order, determining a second time interval having a highest ranking and including a smallest time interval as the part of the time intervals, and reporting the time domain correlation amplitude value of the second time interval to the network device; The TDCP reporting method according to claim 5 .

9. reporting the number of first time intervals and / or second time intervals to the network device; or the number of the first time intervals and / or the second time intervals being set by a network or agreed upon by a protocol.

9. The TDCP reporting method according to claim 7 or 8.

10. The step of reporting the time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device includes: determining a TRS burst as a first TRS burst from the TRS bursts set by the network device; and reporting to the network device time domain correlation amplitude values ​​for different time intervals corresponding to the first TRS burst. The TDCP reporting method according to claim 5 .

11. The step of determining a first TRS burst that needs to be reported from the TRS bursts configured by the network device includes: uniformly determining the first TRS burst according to the same burst interval from TRS bursts set by the network device; The TDCP reporting method according to claim 10.

12. The step of determining a part of TRS bursts as a first TRS burst from the TRS bursts set by the network device includes: determining the first TRS burst non-uniformly according to different burst intervals from TRS bursts set by the network device; The TDCP reporting method according to claim 11 .

13. The step of non-uniformly determining the first TRS burst according to different burst intervals from the TRS bursts set by the network device includes: a step of dividing the set TRS bursts into groups and determining a burst interval corresponding to each group, wherein the burst intervals corresponding to at least two sets of different groups are different; determining the first TRS burst from the TRS bursts in each group based on a burst interval corresponding to the group; The TDCP reporting method of claim 12.

14. The step of reporting the time domain correlation amplitude values ​​of some time intervals in the set of time domain correlation amplitude values ​​to the network device includes: reporting the time domain correlation amplitude values ​​for the specified time intervals in the set of time domain correlation amplitude values ​​to the network device; or reporting to the network device time domain correlation amplitude values ​​for designated time intervals in different sets of time intervals corresponding to the set of time domain correlation amplitude values, wherein a symbol position of a TRS resource included in each TRS burst corresponds to one set of time intervals; The TDCP reporting method according to claim 5 .

15. The step of reporting the time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device includes: quantizing the time domain correlation amplitude values ​​of the at least some intervals to obtain quantized information of the time domain correlation amplitude values; and transmitting quantized information of the time domain correlation amplitude values ​​to the network device. The TDCP reporting method according to any one of claims 1 to 3.

16. quantizing the time domain correlation amplitude values ​​of the at least some intervals to obtain quantized information of the time domain correlation amplitude values, determining a target interval in which the time-domain correlation amplitude value to be reported is located and determining a number of bits corresponding to the target interval; for each of the time-domain correlation amplitude values, quantizing the time-domain correlation amplitude value based on a number of bits corresponding to the time-domain correlation amplitude value to obtain quantization information of the time-domain correlation amplitude value; The TDCP reporting method of claim 15.

17. 1. A time domain channel characteristic (TDCP) reporting method performed by a network device, comprising: configuring a TRS burst in a terminal device to determine a set of time-domain correlation amplitude values, the set of time-domain correlation amplitude values ​​including time-domain correlation amplitude values ​​for different time intervals; receiving time domain correlation amplitude values ​​for at least some of the time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device; A method for reporting TDCP, characterized by:

18. After receiving time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device, determining other time-domain channel characteristics of the terminal device based on the reported time-domain correlation amplitude value. The TDCP reporting method of claim 17.

19. The step of receiving time domain correlation amplitude values ​​of at least some time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device includes: receiving time domain correlation amplitude values ​​for all time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device; The TDCP reporting method of claim 17.

20. The step of receiving time domain correlation amplitude values ​​of at least some time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device includes: receiving time domain correlation amplitude values ​​of a portion of time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device; The TDCP reporting method of claim 17.

21. the partial time intervals are dictated by the network or agreed upon by a protocol; The TDCP reporting method of claim 20.

22. The certain time intervals are first time intervals whose occurrence frequency is higher than a set frequency, or first time intervals whose order is high after sorting the occurrence frequency. The TDCP reporting method of claim 20.

23. sorting all the time intervals in ascending order, and the part of the time intervals is a second time interval with a higher ranking that includes the smallest time interval; 22. The TDCP reporting method of claim 21.

24. receiving the number of first time intervals and / or second time intervals reported by the terminal device; or determining the number of the first time intervals and / or the second time intervals based on a protocol agreement; 24. The TDCP reporting method according to claim 22 or 23.

25. The step of receiving time domain correlation amplitude values ​​of a portion of time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device includes: receiving a time-domain correlation amplitude value corresponding to a first TRS burst reported by the terminal device, the first TRS burst being a portion of a TRS burst determined by the terminal device from configured TRS bursts; The TDCP reporting method of claim 20.

26. The first TRS burst is a TRS burst uniformly determined according to the same burst interval from the TRS burst set by the network device.

26. The TDCP reporting method of claim 25.

27. The first TRS burst is a TRS burst determined from each group of TRS bursts according to the burst interval corresponding to the group, and the burst intervals corresponding to at least two sets of different groups are different; 26. The TDCP reporting method of claim 25.

28. The step of receiving time domain correlation amplitude values ​​of a portion of time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device includes: receiving a time-domain correlation amplitude value for a specified time interval in the set of time-domain correlation amplitude values ​​reported by the terminal device; or receiving time domain correlation amplitude values ​​for designated time intervals in different sets of time intervals corresponding to the set of time domain correlation amplitude values ​​reported by the terminal device, wherein a symbol position of a TRS resource included in each TRS burst corresponds to one set of time intervals; The TDCP reporting method of claim 20.

29. The step of receiving time domain correlation amplitude values ​​of at least some time intervals in the set of time domain correlation amplitude values ​​reported by the terminal device includes: receiving quantization information of the time-domain correlation amplitude values ​​transmitted from the terminal device; determining the time domain correlation amplitude value based on the quantized information. The TDCP reporting method according to any one of claims 17 to 23.

30. A communication device, a processing module for determining a set of time-domain correlation amplitude values, including time-domain correlation amplitude values ​​for different time intervals, based on the TRS bursts set by the network device; a transceiver module for reporting time domain correlation amplitude values ​​of at least some of the time intervals in the set of time domain correlation amplitude values ​​to the network device. A communication device comprising:

31. A communication device, a processing module for configuring a TRS burst in a terminal device to determine a set of time domain correlation amplitude values, the set of time domain correlation amplitude values ​​including time domain correlation amplitude values ​​for different time intervals; a transceiver module for receiving time-domain correlation amplitude values ​​of at least some time intervals in the set of time-domain correlation amplitude values ​​reported by the terminal device; A communication device comprising:

32. A communication device, a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to any one of claims 1 to 16; A communication device comprising:

33. A communication device, a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to any one of claims 17 to 29; A communication device comprising:

34. A communication device, a processor and an interface circuit; the interface circuit is used to receive and transmit code instructions to the processor; The processor is used to perform the method of any one of claims 1 to 16 by executing the code instructions. A communication device comprising:

35. A communication device, a processor and an interface circuit; the interface circuit is used to receive and transmit code instructions to the processor; The processor is used to perform the method of any one of claims 17 to 29 by executing the code instructions. A communication device comprising:

36. A computer readable storage medium having stored thereon instructions which, when executed, effect the method of any one of claims 1 to 16. A computer-readable storage medium comprising:

37. A computer readable storage medium having stored thereon instructions which, when executed, effect the method of any one of claims 17 to 29. A computer-readable storage medium comprising:

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